20373171

素因数分解:

$3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{1523}}^1$

素因数の和:1560

約数の個数: 32

約数和(自身を含む): 34137600

約数和(自身を除く): 13764429

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 343, 637, 1029, 1523, 1911, 4459, 4569, 10661, 13377, 19799, 31983, 59397, 74627, 138593, 223881, 415779, 522389, 970151, 1567167, 2910453, 6791057, 20373171]

約数ペア:

[(1, 20373171), (3, 6791057), (7, 2910453), (13, 1567167), (21, 970151), (39, 522389), (49, 415779), (91, 223881), (147, 138593), (273, 74627), (343, 59397), (637, 31983), (1029, 19799), (1523, 13377), (1911, 10661), (4459, 4569)]